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2211011111112 = 233194848708577
BaseRepresentation
bin100000001011001010100…
…010000010100011001000
321211101000011110221021120
4200023022202002203020
5242211122321023422
64411420253235240
7315511626232566
oct40131242024310
97741004427246
102211011111112
11782759149811
122b8613192b20
13130660b9b3bb
14790290d4a36
153c7a7e8845c
hex202ca8828c8

2211011111112 has 32 divisors (see below), whose sum is σ = 5818450293600. Its totient is φ = 698214034944.

The previous prime is 2211011111081. The next prime is 2211011111117. The reversal of 2211011111112 is 2111111101122.

It is a junction number, because it is equal to n+sod(n) for n = 2211011111091 and 2211011111100.

It is not an unprimeable number, because it can be changed into a prime (2211011111117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2424353833 + ... + 2424354744.

It is an arithmetic number, because the mean of its divisors is an integer number (181826571675).

Almost surely, 22211011111112 is an apocalyptic number.

It is an amenable number.

2211011111112 is an abundant number, since it is smaller than the sum of its proper divisors (3607439182488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211011111112 is a wasteful number, since it uses less digits than its factorization.

2211011111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848708605 (or 4848708601 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 2211011111112 its reverse (2111111101122), we get a palindrome (4322122212234).

The spelling of 2211011111112 in words is "two trillion, two hundred eleven billion, eleven million, one hundred eleven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 4848708577 9697417154 14546125731 19394834308 29092251462 38789668616 58184502924 92125462963 116369005848 184250925926 276376388889 368501851852 552752777778 737003703704 1105505555556 2211011111112